The Allelectrics 13A switched fused spur (SPS) is a fused connection unit that gives a fixed appliance its own switched, fused supply, taken from an existing circuit. The switch lets you isolate the appliance locally and the fuse protects the appliance and its flex, in a straightforward unit without an indicator light.
It suits fixed, hard-wired equipment such as boilers and central heating controls, extractor fans, heated towel rails and water softeners, where a plug and socket would be unsuitable. With a 13A rating, it handles loads up to around 3kW, and the fuse can be chosen to match the appliance at installation.
Switched
Local isolation of the appliance
Fused
Cartridge fuse protection
Spur
Connection to an existing circuit
Fixed
Hard-wired appliance use
SPS
Allelectrics part code
Electrical safety
Isolate the supply at the consumer unit before installing or changing anything. Fixed wiring must be carried out by a competent person in accordance with BS 7671 and, where applicable, Part P.
Compatibility: loads up to 13A only
Use this unit only for fixed appliances within its 13A rating. Fit a fuse that matches the appliance’s rating plate, never higher than 13A. High-load appliances such as electric showers and cookers need their own dedicated, higher-rated circuit and switch, not a 13A spur.
Want an indicator light?
This SPS version has no neon indicator. If you want a visual cue that the unit is switched on, choose the Allelectrics 13A switched spur with neon, part code SPSN.
Key features
Switched isolation
The built-in switch turns the connected appliance on and off without pulling a plug, and makes servicing easier.
Fuse protection
A replaceable cartridge fuse protects the appliance and its flex from overload. Choose a rating to suit the appliance.
13A rating
Suits fixed appliances up to 13A, which is around 3kW at UK mains voltage.
Spur connection
Designed to be wired as a spur from an existing circuit, a neat way to add a fixed appliance feed.
Fixed appliance use
Ideal for hard-wired equipment where there is no plug and socket, including boilers, controls, fans and towel rails.
Simple, no-frills unit
A plain switched and fused unit with no indicator, for installs where a neon is not needed.
Technical specification
General
Product
13A switched fused spur
Manufacturer part code (MPN)
SPS
Unit type
Switched fused connection unit (spur)
Intended use
Fixed, hard-wired appliances
Frequently asked questions
What does a switched fused spur do?
It provides a fused supply to a fixed appliance and a switch to isolate it locally, without needing a plug and socket.
What fuse should I fit?
Fit the fuse rating recommended on the appliance’s rating plate or manual, and never above 13A. As a guide, a 3A fuse suits loads up to about 700W, a 5A fuse up to about 1.2kW and a 13A fuse up to about 3kW.
Can I use this for an electric shower or cooker?
No. Those appliances draw far more than 13A and need a dedicated circuit with a suitably rated switch and protection.
What is the difference between SPS and SPSN?
Both are 13A switched fused spurs. SPS has no indicator, while SPSN adds a neon indicator light.
Does it need an electrician?
Yes. Fixed wiring should be installed by a competent person in line with BS 7671 and, where applicable, Part P.